Visual/Physical Check
Notice: Use the Connector Test Adapter Kit J 35616-A for any test that requires probing the following items:^ The PCM harness connectors
^ The electrical center fuse/relay cavities
^ The component terminals
^ The component harness connector
Using this kit will prevent damage caused by the improper probing of connector terminals.
Several of the symptom procedures call for a careful Visual/Physical inspection. This can lead to correcting a problem without further checks and can save valuable time. This check should include the following areas:
^ Check the PCM grounds for being clean, tight, and in their proper location.
^ Inspect vacuum hoses for splits, kinks, and proper connections, as shown on Vehicle Emission Control Information label. Check thoroughly for any type of leak or restriction.
^ Check the air intake ducts for collapsed or damaged areas, especially between the MAF sensor and the Throttle body.
^ Check for air leaks at Throttle body mounting area, Mass Air Flow (MAF) sensor and intake manifold sealing surfaces.
^ Inspect the wiring harness for poor connections, pinches, cuts or Other damage.
^ Check for loose, damaged or missing sensors/components.
The following Symptom tables are located in this section:
^ Intermittent Conditions
^ Hard Stan
^ Surges/Chuggles
^ Lack of Power, Sluggishness, or Sponginess
^ Detonation/Spark Knock
^ Hesitation, Sag, Stumble
^ Cuts Out, Misses
^ Poor Fuel Economy
^ Rough, Unstable, or Incorrect Idle and Stalling
^ Dieseling, Run-On
^ Backfire
^ Restricted Exhaust System Check
^ Poor Fuel Fill Quality